Template synthesis of single-phase δ(3)-MoN superconducting nanowires.

We demonstrate a new and effective method of producing single-phase superconducting δ3-MoN nanowires from bundled Mo6SyIz (8.2 ≤ y + z ≤ 10) nanowire templates in the presence of ammonia gas. Magnetic susceptibility and electrical resistance measurements confirm single-phase material synthesis. Measurements of four-contact resistance on single wires with diameters above 100 nm in a magnetic field are used to determine the critical field, while diameter dependence and magnetization measurements are used to investigate the homogeneity of the nanowires.

4-Amino-phenyl-sulfur penta-fluoride.

In the title compound, C(6)H(6)F(5)NS, the environment of the S atom is roughly octa-hedral. The axial F-S bond appears slightly elongated with respect to the four equatorial F-S bonds. Equatorial F atoms are staggered with respect to the benzene ring. The N atom is displaced from the benzene plane by 0.154 (4) Å. The F-S-C-C torsion angles differ greatly from the values observed in the related structure of 4-acetamido-phenyl-sulfur penta-fluoride. The packing is stabil-ized by weak N-H⋯F contacts.

A novel facile synthesis and characterization of molybdenum nanowires.

We describe a straightforward technique to synthesize pure Mo nanowires (NWs) from Mo6SyIz (8,2 15 nm) Mo NWs are highly porous, while small diameters (<7 nm) are made of solid nanocrystalline grains. We find NW of diameter 4 nm can carry up to 30 µA current without suffering structural degradation. Moreover, NWs can be elastically deformed over several cycles without signs of plastic deformation.

WS2 nanobuds as a new hybrid nanomaterial.

We report on the first inorganic nanobuds: WS2 nanotubes decorated with fullerene-like particles. They were synthesized by sulfurization of W5O14 nanowires. The fullerene-like particles nucleate in surface corrugations of the nanowires and grow by a diffusion process simultaneously with the transformation of nanowires into hollow multiwall nanotubes. Electron microscopy data are correlated with details of the transformation process revealing the possible mechanism of the formation of these new complex nanomaterials.